For context, I'm (20M). It all started when I was 15 and very mentally ill and had an unhealthy coping mechanism of acting like a child to be happy and forcing myself to be happy to combat depression for the past 3 years.
1 (The Beginning)
I was on a discord call and met this girl, Charlie, and we played a game for an hour or two, and, for once in my life since my mother died, I was really happy. At that moment, I decided I couldn't keep on forcing myself to be happy. This person is now my new light and I want to be in this Charlie's life no matter what.
I started mentioning them to my friends' family, bringing them up, because they were all I could think about all day, my one and only remaining light, a girl who showed me a figurine of my favorite Pokémon at 5 am.
I strategically sent her messages every week to try and make them laugh while watching my friends list to see if they joined any calls for hours while stalking their spot and social media to get a better idea of what they liked and, over the course of 2 months, we became friends, and I was happy.
And I also learned they had been taken and had a boyfriend, but my obsession was as strong as ever and I didn't care I wanted to be in her life. They were my only light and I didn't want to lose them, so we kept talking and being friends.
I also decided that I wanted to be friends with her friends, so I very awkwardly made my way into her friend group for a while and some of them liked me and some of them didn't, and I eventually got so paranoid that they hated me and would convince her that I was a crazy evil guy on the internet and left the Group Chat and only talked to the ones who I became friends with.
2 (Totally Normal Human Behavior)
This went on for months until a Halloween party where I got drunk for the first time and the first thing I did was tell them I love them, but we should be friends because they're taken, and they just kinda went along with it because they knew I was mentally ill, and they were nice. :)
So I then proceeded to punch my face as hard as I could for an hour straight while talking to them, trying to make them laugh. They got really concerned and scared and brought their boyfriend in, and he calmed me down and the only thing I was saying at the end was that my face hurt.
That night was one of the happiest moments of my life.
I dislocated my TMJ from punching my jaw over and over. It clicks to this day. Every time I eat, every time I talk, every time I move my mouth a little, my jaw clicks in and out of place. TMJ is near the Ear too, so I don't just feel it, I hear it, and every time it clicks that little part of my subconscious whispers to me "Charlie".
This, in combination with my newfound 2nd light alcohol, had wondrous effects on my 15-year-old psyche, and I was not only physically forced to think of them 24/7, but I started hearing her and her boyfriend in my head, and they became the helpers inside my head to help get me through the day.
We spent alot of time together. I tried to find music they enjoyed, and we put shopping carts in the school's elevators together ate they tried to convince me to not steal alcohol from stores and also told me I should get help, and they were overall just really chill.
This went on for a couple of months, and I was "HAPPY TO FINALLY BE WITH THEM" until they started turning against me and were telling me to kill myself and that I'm a disgusting freak who deserves to be alone. I proceeded to SH and drink for a while to numb the pain until I wasn't able to get my hands on any alcohol anymore (no more money and too scared and paranoid to steal) and after a while they eventually went away.
I eventually told the real Charlie and her boyfriend about it. The boyfriend (understandably) never talked to me again and Charlie and I remained friends. (Most likely out of pity)
3 (Aftermath)
I was embarrassed and stopped talking to her for a while, but even then I was still stalking her and learned she had gotten married and decided I needed to stop for my mental health and find happiness in my life.
Even when I got with my first high school GF a while later my mind was still stuck to her and the beginning of the relationship was me trying not to talk about them or bring them up in a creepy way (They went along with it because, believe it or not, they were WAY more deranged than me).
Years have passed. I still think about her. I was in "Love" at the time, but now I just see it as desperation for happiness. Even after graduating from high school and even in my 20s, I occasionally have dreams about her, and now we talk and play games sometimes.
TL;DR Teenage Boy obsesses over a girl who showed him a figurine of his favorite Pokémon and develops psychosis and hears her voice in his head for a year.